Ok.... Let's see the situation:
your are in Sevilla, locked in the bathroom of your kind couchsurfer who let you the key of his house for 3 days and went to his family, and now, you are alone until these time locked in the bathroom.
In these moment, there is only one person who can help me......
Thank you MacGyver, but the only hard thing I have is......
At the end: 20 minutes being locked...(only!)